| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/07/2023 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1000 | $156.07 | $156.1k | | 08/07/2023 |
| 02/24/2023 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 900 | $107.04 | $96.3k | | 02/24/2023 |
| 02/02/2023 | Simpson Manufacturing Co., Inc. | SSD | Gift | Common Stock | 50 | $0.00 | $0 | By Trust | 02/02/2023 |
| 05/09/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1.2k | $104.29 | $123.1k | | 05/09/2022 |
| 05/04/2022 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 1.2k | $0.00 | $0 | | 05/04/2022 |
| 03/11/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 500 | $117.99 | $59k | By Trust | 03/11/2022 |
| 11/09/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 800 | $123.19 | $98.6k | By Trust | 11/09/2021 |
| 07/08/2021 | Simpson Manufacturing Co., Inc. | SSD | Gift | Common Stock | 300 | $0.00 | $0 | By Trust | 07/08/2021 |
| 05/04/2021 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 1.2k | $0.00 | $0 | | 05/04/2021 |
| 11/30/2020 | Simpson Manufacturing Co., Inc. | SSD | Gift | Common Stock | 1.6k | $0.00 | $0 | | 11/30/2020 |
| 11/30/2020 | Simpson Manufacturing Co., Inc. | SSD | Gift | Common Stock | 1.6k | $0.00 | $0 | By Trust | 11/30/2020 |
| 11/18/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1000 | $94.68 | $94.7k | By Trust | 11/18/2020 |
| 09/10/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1000 | $99.28 | $99.3k | By Trust | 09/10/2020 |
| 08/14/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1000 | $102.23 | $102.2k | | 08/14/2020 |
| 04/23/2020 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 1.6k | $0.00 | $0 | | 04/23/2020 |
| 03/09/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1.2k | $79.45 | $99.2k | | 03/09/2020 |
| 02/12/2020 | Simpson Manufacturing Co., Inc. | SSD | Gift | Common Stock | 750 | $0.00 | $0 | | 02/12/2020 |
| 05/09/2019 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 416 | $0.00 | $0 | | 05/09/2019 |
| 04/26/2019 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 1.6k | $0.00 | $0 | | 04/26/2019 |
| 08/03/2018 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 575 | $73.43 | $42.2k | | 08/03/2018 |
| 08/03/2018 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1.4k | $73.43 | $104.6k | | 08/03/2018 |
| 08/03/2018 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock (RSUs awarded February 6, 2013) | 1.4k | $73.43 | $104.6k | | 08/03/2018 |
| 08/03/2018 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock (RSUs awarded February 3, 2014) | 525 | $73.43 | $38.6k | | 08/03/2018 |
| 04/24/2018 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock (RSU awarded April 24, 2018) | 1.5k | $55.34 | $81.6k | | 04/24/2018 |
| 05/16/2017 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock (RSU awarded May 16, 2017) | 1.4k | $41.52 | $59.7k | | 05/16/2017 |
| 04/20/2016 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock (RSUs awarded April 20, 2016) | 1.8k | $38.00 | $68.4k | | 04/20/2016 |